Road-working apparatus



Jan. 19 1926. 1,570,171

' T. s. O'BRIEN ROAD WORKING APPARATEJS 7 Filed Oct. 10, 1923 7Sheets-Sheet 2 INVENTOR a m ATT RNEY.

Jan. 19 1926. 1,570,171

T. s. O'BRIEN INVENTOR.

Jan. 19 1926.

T. S. O'BRIEN ROAD WORKING APPARATUS Filed Oct. 10, 1923 '7 Sheets-Sheet4 INVENTOR.

Ear/ :15: 0.517.811

ATTORNEY.

Jan. 19 1926.

. 1,570,171 T. s. OBRIEN ROAD wonxme APPARATUS File Oct 10, 1925 7Sheets-Sheet 5 Jan. 19 1926.

T. S. OBRIEN ROAD WORKING APPARATUS Filed Oct 10, 1923 7 Sheets-Sheet 6INVENTORU jflrmami Oil-26m Patented v N QF TI EL rnoxhs s. oisainii,time, cam ronnm, assIeNon 'ro 'rnssan-canson coma rm, 4cornn'rnnnsnrroonsrs'rrno or runny Lassen. rumors L. canson, AND 'rnomlssonman, or SAN rnancrsco, camroanm.

To-all whom/it may concern:

Be it knownthat I, THOMAS- S. OBRIEN, a citizen of'theUnited States,residing at Oakland, in "the-countyof Alameda, State of California, haveinvented a new and use ful Road-Working Apparatus, of which thefollowing isa specification in such full and clear terms as will enablethose skilled in the artto construct and use the same.

This invention relates to a machine for preparing road sub-grades forthe placement of the surface aving, and its object is to smooth andgrade the, roughly plowed surface to the desiredgrade, without theinterposition of the large amount of scraping and hand-shovellingordinaril required in the preparation of such grades rolling.

Another object of the invention is to pro- H vide a machine which iscapable also of spreading asphalt or concrete paving and compacting the'same upon the sub-grade, should it be necessary in an emergency -to usethis machine for that purpose.

Another object of the invention is to provide means whereby the cuttingroller and compacting a paratus may be moved from.

side to side 0 the road, and for a short distance longitudinally thereofwithout moving the truck supporting the entire apparatus, a specialshiftable bed being used upon the truck to effect this result. a

A further object of the invention is to- )rovide means whereby thecompacted road may be crowned, should the specifications call for thatcharacter of road. This latter reduced in size to permit it'to be movedfrom place to lace without interferingwith the placing of ordinarygates, bridges, etc., which determine the total width suchya paratus mayextend to when being moved rom place to place.

Other objects of the invention will appear as the description proceeds.

' 'no'An-wonxme hummus.

mutation and October 10, 1923. Serial: No. ceases.

I An embodiment of the invention is shown in the accompanying drawingsin which the same reference numeral is applied to the same portionthropghout, but I am aware that there may be modifications thereof.

Fig. 1 is a side elevation of the complete I apparatus.

Fig. 2 is a plan' view of the complete apparatus.

Fig. '3 is a plan viewflof the sub-frame}- of the truck. v

Fig. 4 is a plan view ofthe longitudinally movable frame which ismounted upon the truck frames shown in Fi re 3. i.

Fig. 5 is a plan view 0 a portion of the j 1 tilting .frame which ismounted upon the frame shown in Figure 4.

Fig. 6 is a front elevation of the machine. Fig. 7 is a rear elevationof the machine.

The apparatus consists of a main truck having wheels 1 to 4 inclusivefor support ing the axles 5 and 6, and which axles 'in turn support thelarge rectangular horizontally extending frame 7and smaller horizontally extending frame 8 at the front of the frame 7. v; v

The frame 8 is rectangular in shape and is suitably-"connected to therectangular frame 7 by means of heavy riveted gussets 10 and 11, and isat a slightly higher elevation than the frame 7.

Channel irons- '12 and 13 extend trans.

versely of the frame 8 and serve to carry the bearing 14 for the kingbolt 15. The" king bolt has a segment gear 16 thereon which is in meshwith a worm 17. on ashaft 18. This shaft is supported by bearings 19 and20 on bars 21, 22 carried by the frame 7. This shaft 18 also has a gear23in mesh with a gear 24 on the steering column 25.

The steering column is journaled in twobearings 26, 27, and has thewheel 28 for a sprocket wheel 36 around which passes the sprocket chain37,'said chain also passing around a sprocket gear 38 at the front endof the main frame 7. This s rocket gear.

38 is on the shaft 39 journals in suitable 47 connected to the underside of the framethereon as indicated at 43 in mesh with the worm wheel44 to drive the truck forward or back as may be desired.

The worm wheel 44 is mounted on a heavy tubular shaft 45 journaled inbearings 46,

7 at its rear.

The wheels 3 and 4 are respectively connected to stub axles 48,49, saidaxles being slidable in the tubular member v45. These extends throughthe journal 86 and carries the complementary member 91 of the clutchcollar 91.

Similarly the sprocket wheel .94 is rigid- 1y connected to a sleeve 95which extends tirough the bearing 89 and has a portion 92 complementaryto the clutch collar 92.

At the other endof the shaft 82 there is a small gear 96 having a hub 90complementary to the clutch collar 90.

' The gear 96 is loosely mounted on the shaft 82 and is in engagementwith a gear 97 on a shaft 98 journaled in the bearing 99.

axles are held in a fixed position in either The shaft 98 and bearing 99is also proadjustment with respect to the tubular shaft in which theyare slidable, by means of the keys 51, 52; set screws 53, 54 enablingsaidkeys to be raised sufliciently to clear the shafts 48, 49 when it isdesired to shift them from one position to another.

The bracket 50 has a bearing 55 for the shafts 48 or 49, there being twoof said brackets, andeach is provided with an up wardly extending flangeas indicated at 56 and with a bracing flange as indicated at 57. J Theengine cylinders 30, 31 are provided with power from any source desiredunnecessary to indicate herein.

The frame 7 is provided with a plurality of horizontally extendingshafts 58 to 62 inclusive, and each of said shafts has two wheelsthereonas indicated at 63, 64. The wheels 63, 64 of which there are ten,form the support upon which the rectangular frame shown in-Figure 4 ismovable. This frame consists of two side channel bars 65, 66 connectedat their ends to two transversely extending channel bars 67, 68. Theside channel bars are placed with their flangesv outwardly to fit underthe inwardly extending flanges of the truck frame 7, and they at thesame time ride upon the wheels 63, 64. The result of the foregoingconstruction is that while the entire load of the movable parts of theapparatus is carried by the wheels 63 and 64, that the frame having theside bars 65, 66'cannot be dislodged from the frame 7 either laterallyor by tilting.

Extending transversely across from the channel bars 65, 66 are twoshallow channels 70, 71 which-support a boiler 72. In addition there areother channels 73, 74 and 75 which support a floor 76 for the two engine7 cylinders 77, 78. These engines are suitably vided with a smaller gear100 in mesh with a larger gear 101 to which is connected the rod 102.The rod 102 is connected by means of a turn-buckle 103 with another rod104 in turn connected to an arm 105 on a shaft 106. The shaft 106extends transversely of the two frame members 65, 66 and has oppositelyplaced arms 107, 108 thereon.

At the front and back of the frame mem bers 65, 66 there are two othershafts 110, 111 journaled in bearings 112, 113, 114 and 115, Theseshafts have oppositely placed arms 116, 117 118, 119 thereon tocorrespond with the two arms 107, 108, the arrangement being such thatall of the arms on one side of the frame extend parallel to each other,while all of the arms on the opposite side of the frame extend parallelto each other butsprocket wheels on the shaft 106 and around sprocketwheels 122, 123011 the shafts 110, 111 respectively.

The clutch collars 90, 91, 92 may be shifted by means of the levers 125,126, 127 at the will of the operator to drive the drums 83, 84, thesprocket wheel 94 or the gears 96, 97 at will. If the gears 96, 97 areoperated the shafts 106, 110 and 111 will be rotated to reversely raiseor lower the arms at the ends of said shafts.

The sprocket wheel 94 has a sprocket chain 128 passing over the same andunder a sprocket wheel 129 mounted on the side of the frame member 65.The shaft carrying this sprocket wheel is indicated at 130 and has agear 131 thereon in'mesh with a rack 132 on the top of the sub-frame 7shown at the right hand side Figure 8.

The result of this construction just outlined is that when the sprocketwheel 94 is operated the frame formed of the members 65 to 68 inclusivewill be either backed up or pulled forward in accordance with thedirection of movement of the shaft 82.

At the middle of the cross bars 67, 68 there are two bearings 133, 134which support the tilting frame composedof the transverse members 135,136, 137, 138 and the longitudinal members 139, 140.

suitable heavy gusscts 141 to 144 inclusive Ht its corners to stiffenit. Its cross members am also provided with four bearings 145 to- 118inclusive for the pivot ins 149,: 150 which support said frame, sai pinsbeing in turn journaled in the bearings 133,131 on the longitudinallymovable frame. The outer ends of thetilting frame rest upon the ends ofthe arms 108, -107and116 to 119 inclusive. If the road is level, theframe just described will be held level'by the arms which support it atits edges, but if the-road is to have a crown, this frame will 'betilted as may be necessary to produce will be later explained.

The member 138 1s a in front of the winding drums 83, 84, and

said cables are reversely wound upon said drums so when the drums areoperated as a unit, the leveling and tamping apparatus will be pulled toone side or the other of the road as may be desired. p

The tamping apparatus consists of two engine cylinders 172, 173supported by a rectangular frame 174 suitably bolted to the lower endsof the two vertical members 166, 167. These members are in turnconnected at their upper ends by means of a heavy channel bar 17 4. Fourwheels 175 to 178 inclusive are journaled in suitable hearings on thevertical members 166, 167 to form the supports and guides for the framecarrying the tamping apparatus.

The two engine cylinders 172, 173 carry heavy tamping heads 179, 180 atthe lower ends of their piston rods 181, 182. A trans verse bar 183supports another engine cylinder 184 and its connecting link 185is'connected to the crank pin of a shaft 186.

This shaft carries a sprocket gear around which passes a sprocket chain187, which chain also passes around a. sprocket gear 188 on a shaft 189.Another sprocket chain 190 passes around this sprocket wheel and arounda sprocket wheel 191 on the shaft'192 which carries the levelingcylinder 193 with its heavy steel cutters 19 1.

The cylinder 193 is supported by two arms 195, 1.96 from the shaft 197on which the sprocket wheels for carrying the cylinder the crown as.

very heavy channel, bar and has two heavy hinges 152, 153 at its" Thesehinges are connected to two are carried. These arms also have backwardlyextending projections 198, 199 through which set screws 200, 201 pass todetermine the depth at which the cutters will act, or. to hold thecylinder off the ground if that is desired. Y

' At the front of theframe there is a sheet metal guard 202 to preventthe dirt thrown forward by the cutters from passingout of the range ofthe tampin mechanism.

widest possible position so as to pass over piles of dirt-or othermaterials to be spread,

and the supporting channels 154, 155 are hswung outwardly. Thereupon thewinding engine is operated to bring the tamping apparatus and cuttingcylinder to the- 'desired portion of the road; whereupon theen ggines.172, 173' and. 184 are operated to smooth'the road. At the same timethe winding engine is operated to cause the '75 In operation the mac ineis placed upon-j the road with its rear wheels adjusted to the tampingapparatus and smoothing'apparams to be moved transversely of the road toany extent desired.

' When a given portion of the road has been smoothed the clutches areengaged to shift the position of the'intermediate frame longitudinallyof the main truck, and this is continued throughout the-possibleshifting of that truck, ordinarily, SIX or seven feet.

When this amount ,of road has been smoothed, the main truck may beoperated to shift its position on the road sufiiciently to give a newpossibility of movement of the intermediate supporting frame and thetamping apparatus, and the operation is continued.

If the roadway is to be provided with a crown, the upper frame is tiltedfirst one way, and then the other to correspond with the crown desired,so that when the tamping apparatus is near one end of its supportingbeam, it will finish the road lower than it does when at the center ofits supporting beam.

It will be observed that this apparatus may either by used for finishingroads from the rough grade, or for spreading and tamping the roadbuilding materials upon the finished sub-grade.

What I claim is as follows, but various modifications may be made in theconstruction shown in the drawings and above particularly describedform, within the purview of my invention.

1. A road Working apparatus comprising a truck, a longitudinally movableframe thereon, means to move said frame in either direction, atransversely extending beam carried thereby, a means to prepare a roadsurface, a frame supporting said road surface reparing means, and meansto move said rame back and forth along said beam. '2. A. road workingapparatus comprising 1 means to move the frame back and forth along thebeam.

3. A road Working apparatus comprising a mobile Wheeled truck, aplurality of rollers carried thereby, a frame supported on said rollersand movable longitudinally of the truck, means to move said frame ineither direction, a transversely extending beam, a frame supportedthereb road Working apparatus carried by sai frame, and means to movethe frame from one end to the other of the beam supporting it.

4:. A. road workin apparatus comprising a mobile truck, a p urality ofrollers carried thereby, a longitudinally movable frame supported on therollers, a longitudinally pivoted frame carried by the first frame,means to move the latter frame on its pivots, a transversely extendinbeam carried by the latter frame, a mova le frame supported by the beam,road leveling apparatus carried by the latter frame, and means to movethe frame and road leveling apparatus from one end to the other of thebeam supporting said apparatus.

5. A road Workin apparatus comprising a mobile truck, a ongitudinallymovable frame supported thereon, means to move said frame in onedirection or the other, a frame pivotally mounted on the first frame tomove on. an axis longitudinal of the truck, means to tilt said frame toone side or the other at will, a beam carried by the latter frame andextending transversely of the truck, a frame supported on the beam, roadleveling apparatus carried by the frame, and means to move the framelongitudinally of the beam supporting it.

6. A road Working apparatus comprising a mobile truck, means whereby thetread of the rear Wheels of the truck may be extended or retracted, alongitudinally movable frame carried by the truck, a frame pivotallymounted on the first frame to move on a longitudinal axis, atransversely extending beam carried by the pivoted frame, a verticallyextending frame carried by the beam, road Working and leveling apparatussupported by said frame, and means to move the road Working and levelingapparatus and its supporting frame laterally across the road atwill.

7. A road working apparatus comprising a mobile truck, a longitudinallymovable frame supported thereon, a'pivoted frame mounted to move on anaxis longitudinally of the truck, a plurality of shafts carryingoppositely placed arms bearing upon the tilting frame for tilting it asrequired, a transversely extending beam, road Workin apparatus supportedby said beam, an

means to move the road working apparatus transversely across the road,

8. A road Workin apparatus comprising a mobile truck, a. longitudinallymovable frame thereon, a pivotally mounted frame on the first frame,means carried by the first frame to tilt the pivotally mounted frame atwill, a transversely extending beam carried by the pivotally mountedframe, road Working apparatus supported by said beam, and motors mountedon the longitudinally mov able frame for movin the road Workingapparatus back and fort across the road,

9. A. road working apparatus comprising a mobile truck, a longitudinallymovable frame supported thereon, a second frame pivotally mounted on thefirst frame, shafts carrying oppositely placed arms bearing upon thepivotally mounted frame to tilt it at will, a transversely extendingbeam carried by the pivotally mounted frame, a frame supported onrollers bearing upon said beam, road Working apparatus carried by saidframe, and means to move the latter frame back and forth across theroad.

10. A. road Working apparatus comprising a mobile truck, alongitudinally movable frame supported thereon, a longitudinally pivotedframe supportedon the first frame, means to tilt the latter frame to oneside or the other at will, a transversely extending sectional beamcarried by the tilting frame, road leveling apparatus supported fromsaid beam, motors carried by the longitudinally movable frame, and meanswhereby the motorsma-y be operated to move the road leveling apparatustransversely of the road at will.

11. A road Working apparatus comprising a mobile truck, a longitudinallymovable frame carried thereby, a pivotally mounted frame supported onthe longitudinally movable frame, a jointed beam carried by thepivotally mounted frame, means to hold all of the portions of said beamin alignment with each other, a frame supported by said beam and movablelongitudinally thereof, road working apparatus supported by the frame,motors on the frame for the operation of said apparatus, and means tomove the frame transversely of the road at will to Work it.

12. A road Working apparatus comprising a mobile truck, a longitudinallymovable frame carried thereby, a pivotally mounted frame supported onthe first frame, a transversely extending beam carried by the pivotedframe, a vertically extending frame supported from and movable along thetransversely extending beam, road surface preparing means carried by the-frame,-motors on thefraine for the operation of the cut- Ell ltll)llllll roe ting and tamping apparatus, and means to move the cutting andtamping apparatus back and forth across the road.

13. A road working apparatus comprising 5 a mobile truck, alongitudinally movable frame carried thereby, a ivotally mounted frameon the first frame, s afts carrying oppositely placed arms for tiltingthe pivoted frame from one side to the other at will, a

transversely extending beam supported by the pivoted frame, road surfacepreparing means supported by the frame, motors carried by the frame forthe operation of the cutting and tamping apparatus, and means to movethe cutting and tamping apparatus back and forth across the road.

In testimony whereof I have hereunto set my hand this 3rd day of Oct. A.D. 1923.

THOMAS S. OBRIEN.

